The Series AN2 Indicating Alarm Annunciator provides visible and
audible alarms for up to eight inputs. The annunciator also has two SPDT
relay outputs that can be used to initiate external alarms, buzzers, or
paging devices. The Integral 24 VDC power supply can power most level,
temperature, pressure, and flow switches. Audible alarm conditions can
be acknowledged, reset, or silenced either via the front panel push
buttons or the rear terminal block. The Series AN2 can be set to any
common ISA sequences including First-Out.